Description
The Keyence LR-ZB250AN is a compact distance-based laser sensor featuring a durable stainless-steel housing and precise NPN output. Designed for high-accuracy detection from 35 to 250 mm, it provides consistent performance in demanding industrial environments with variable lighting and temperature conditions.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Keyence |
| Category |
Sensors & Switches |
| Part Number |
LR-ZB250AN |
| Subcategory |
Photoelectric |
| Type |
Distance-based laser sensor |
| Appearance |
Rectangular |
| Output |
NPN Open collector |
| Cable Connection |
2 m cable |
| Detectable Distance |
35 to 250 mm |
| Standard Detectable Deviation |
35–180 mm: ±0.79 mm; 180–250 mm: ±0.98 mm |
| Display Resolution |
1 to 3 (0.04" to 0.12") |
| Spot Size |
Approx. 2.4 × 1.2 mm at 250 mm |
| Response Time |
1.5 / 10 / 50 ms selectable |
| Light Source |
Red laser, 660 nm |
| Laser Class |
Class 1 (IEC60825-1, FDA CDRH Part1040.10) |
| Power Voltage |
10 to 30 VDC, ripple ±10% |
| Power Consumption |
450 mW or less (18 mA at 24 V) |
| Protection Circuit |
Reverse polarity, overcurrent, output surge, reverse connection |
| Enclosure Rating |
IP68, IP69K (NEMA 4X, 6P, 13) |
| Ambient Temperature |
-10 to +50 °C (No freezing) |
| Relative Humidity |
35 to 85 % RH (No condensation) |
| Storage Temperature |
-25 to +75 °C |
| Vibration Resistance |
10–55 Hz, 1.5 mm amplitude |
| Shock Resistance |
1,000 m/s², 6 times in each direction |
| Material |
SUS316L case, PMMA lens cover |
| Weight |
0.26 lbs (approx. 110 g) |
Information About LR-ZB250AN
The LR-ZB250AN belongs to Keyence’s LR-Z series, engineered for advanced distance-based sensing with stable operation on varied target surfaces and colors. Its robust stainless-steel construction with IP68/IP69K enclosure rating ensures protection against water, dust, and chemicals. The unit features a visible red laser beam (660 nm) and selectable response speeds for adaptable performance in both high-speed and high-precision applications. Supporting standard NPN open-collector output, it seamlessly integrates into automated production systems and control networks.
Key Features:
- Wide Detection Range: Accurately detects targets from 35 to 250 mm, supporting various object types and materials.
- Compact Stainless-Steel Housing: Built from SUS316L for excellent resistance to corrosion, moisture, and harsh cleaning agents.
- Visible Red Laser (660 nm): Ensures easy alignment and precise detection for all reflective surfaces.
- High Precision Measurement: Offers ±0.79 mm to ±0.98 mm deviation for reliable distance control.
- Adjustable Response Time: Selectable 1.5 ms / 10 ms / 50 ms speeds to suit fast or stable operations.
- IP68/IP69K Protection: Fully sealed against water, dust, and washdown chemicals for food or chemical plants.
- Flexible Output Options: Supports Light-ON/Dark-ON selection and standard NPN open-collector output.
- Integrated Display and Indicators: Equipped with 3-digit red LED display and multi-color status indicators for easy setup.
- Strong Environmental Endurance: Operates from -10 °C to +50 °C, resistant to vibration, shock, and ambient light.
- Low Power Consumption: Consumes only 450 mW or less, ensuring efficient operation in continuous-use systems.
The LR-ZB250AN delivers the reliability and precision required for industrial automation, quality inspection, and machine integration applications.
